This really brings out the utility of an external enclosure as a backup device in addition to its making large files portable. The backup program allows for custom file transfers from your machine to the Kingwin Jet. It also allows you to select a target and destination path so that by touching the backup button on the rear of the unit, the target you preselected is automatically backed up. Not exactly a full system hardware backup but as far as me backing up my recorded episodes of Pinks for posterity, it does very nicely indeed.